MakeItFrom.com
Menu (ESC)

ASTM A387 Grade 21L Class 1 vs. EN 1.1127 Steel

Both ASTM A387 grade 21L class 1 and EN 1.1127 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 21L class 1 and the bottom bar is EN 1.1127 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
14 to 25
Fatigue Strength, MPa 160
280 to 370
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 310
420 to 480
Tensile Strength: Ultimate (UTS), MPa 500
660 to 790
Tensile Strength: Yield (Proof), MPa 230
410 to 580

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 480
400
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.5
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 62
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
90 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 140
440 to 880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
23 to 28
Strength to Weight: Bending, points 18
22 to 24
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 14
21 to 25

Alloy Composition

Carbon (C), % 0 to 0.1
0.34 to 0.42
Chromium (Cr), % 2.8 to 3.3
0 to 0.4
Iron (Fe), % 94.4 to 96.1
96.6 to 98.1
Manganese (Mn), % 0.3 to 0.6
1.4 to 1.7
Molybdenum (Mo), % 0.9 to 1.1
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.035